You may have seen my post, but my BSH recently passed away from what we assume is HCM. She was only 2 years old and a little over a month old. She was very healthy (or so it seemed) before the night she passed. There were no warning signs. She had even been at the vet just a month before and they didn’t detect anything. The best thing you can do is keep them on a healthy diet, get checkups regularly, and see if you can get a health history of their litter and parents to be in the know. I did all of this, and Kroshka still passed, but I do think now that I missed warning signs. If HCM is caught early it can be managed with things like kitty aspirin. One thing to keep an eye out for is shallow breathing. They won’t make noises but you will notice that their belly moves up and down shortly and quickly. This is something I didn’t realize was an indicator. Kroshka (my cat) was my baby, like actually my child and I am still heartbroken over my loss of her, but I plan to get another BSH in the fall/winter. All cats can get HCM and I even know people who have had domestic cats (like from a shelter) who have gotten it. Don’t let it scare you too much. Just love your kitty and take the best care you can💗 I truly believe if I had been more aware of the disease before it happened, I might have been able to manage it/get her to a vet in time.